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Influence of altitude on Roots blower pressure in plateau area?

Source: Roots blower manufacturer Published on: 2023-03-07 Hits:

China has a vast land area. Some areas are plateau areas with high altitude. Many customers do not know the impact of high altitude on the use of roots blowers when using roots blowers:

The selection of Roots blower is affected by working condition information, altitude and industry. Today, East China Xiaobian saw a netizen asking on the Internet: What will be the reaction of Roots blower in high altitude areas? If you just read it literally, Roots blower can operate normally at high altitude, standard condition and low altitude, which means no load. However, the selection of Roots blower must be combined with the working condition information, so the selection in high altitude areas should not be based on the standard conditions. This is also the key content of today's edition. There is a big difference between high-altitude areas and low altitude areas for Roots blower. Pay more attention to the use of Roots blower in high altitude areas. So, does altitude have a serious impact on Roots blower?

Influence of Altitude on Roots Blower Pressure in Plateau Area

① Due to the thin air in high altitude areas, the air volume calculation needs to be based on the altitude. If the air volume is calculated according to the sample, a large error may occur.

② The pressure also needs to be specially designed according to the local altitude, climate, air humidity, etc. The pressure in low altitude areas is quite different from that in high altitude areas.

③ Generally, plateau motors are required, and ordinary motors cannot be used in high-altitude environments. Plateau motors are also more expensive than ordinary motors.

④ Plateau motors are those whose altitude is higher than 1000m. They are no more than 2000 meters, 3000 meters, 4000 meters and 5000 meters respectively. The increase of altitude will cause the decrease of insulation strength. The insulation strength will be reduced by 8-15% every 1000 meters, so the insulation strength of the motor should be improved.

The breakdown voltage of the electrical gap decreases, so the electrical gap shall be increased according to the altitude. When the altitude increases, the corona starting voltage decreases, so the anti corona measures of the motor should be strengthened. As the altitude increases, the cooling effect of air medium decreases, the heat dissipation capacity decreases, and the temperature rise increases. The temperature rise will increase by 3-10% for every 1000M increase, so the temperature rise limit of the motor should be corrected. The high altitude has an impact on Roots blower.

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